<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <p>输入框的内容为: {{inputValue}}</p>
    <com-input v-model="inputValue"></com-input>
  </div>
</body>
<script src="./lib/vue.js"></script>
<script>
    let comInput = {
      props: [ 'value' ],
      template: `
        <input type='text' :value="value"
        @input="$emit('input', $event.target.value)">
      `
    }
  new Vue({
    el: "#app",
    data: {
      inputValue: ''
    },
    components:{
      comInput
    }
  })
</script>
</html>